Toyota Avensis, T25 (EU)

Additional Notes

• The Toyota Avensis T25 (EU) automatic transaxle specifications list two distinct capacity figures for each engine variant: a dry fill and a service fill. The dry fill represents the total fluid volume required when filling a completely empty transmission, such as after a full overhaul or unit replacement. The service fill is the smaller volume needed to replenish fluid during a routine drain-and-refill service, reflecting the amount that remains trapped in the torque converter and valve body during a standard drain procedure.
• The 1.8 16V VVT-i carries a dry fill capacity of 6.9 liters and a service fill of 3.0 liters across both the 2003-2006 and 2006-2009 production periods. The gap between the two figures — roughly 3.9 liters — represents fluid retained in the transmission assembly after a conventional drain, which is not recovered without a full disassembly or a forced flush procedure.
• The 2.0 16V VTT-i D4 requires a notably larger dry fill of 8.6 liters compared to the 1.8-liter engine, with a service fill of 3.5 liters. The larger total capacity reflects the physically larger automatic transaxle unit paired with the 2.0-liter engine displacement.
• The 2.4 16V VTT-i D4 carries the highest dry fill capacity among the three engine variants at 8.8 liters, with a service fill of 3.5 liters — identical to the 2.0-liter unit. The marginally higher dry fill of the 2.4 compared to the 2.0 suggests a slightly larger transaxle assembly despite sharing the same service fill volume.
• All three engine variants — the 1.8, 2.0, and 2.4 — share an identical fluid check interval of 45,000 km or 36 months under normal use conditions. No fluid change interval is specified under normal use, meaning the check interval alone defines the scheduled maintenance requirement in standard operating conditions.
• Under severe use conditions, a fluid change interval of 90,000 km or 72 months applies to all three engine variants in addition to the 45,000 km / 36-month check interval. Severe use typically encompasses operating conditions such as frequent towing, stop-and-go traffic, extreme temperatures, or sustained high-load driving, which accelerate fluid degradation relative to normal use.
• The capacity figures for the 1.8 16V VVT-i remain unchanged between the 2003-2006 and 2006-2009 model year ranges, at 6.9 liters dry fill and 3.0 liters service fill. The same consistency applies to the 2.0 and 2.4 VTT-i D4 variants across both production periods, indicating no transaxle capacity revision occurred at the 2006 model year boundary for any of the three engines.
• The service fill volumes of 3.0 liters for the 1.8-liter engine and 3.5 liters for both the 2.0 and 2.4-liter engines represent less than half of their respective dry fill totals in each case. A technician performing a routine service drain therefore replaces only a portion of the total fluid volume present in the transaxle, which is a characteristic limitation of conventional drain-and-fill automatic transmission servicing without specialized flushing equipment.